A scientist has discovered a way to time travel 57 years in the future but the only people who can travel must be in their early twenties or suffer fatal kidney failure as part of the "transfer" process. So his two daughters can go. Unfortunately one of them is killed when she accidently falls into a crevice, which traumatizes her younger sister, Karen.
There's talk of them being shut down so a bunch of youngsters (one of them is Keith Carradine of DEXTER) transfer themselves to the future along with limited camping supplies. When one of them tries to go back the machines don't work, which means they were shut down on the other side. Their plan is to travel to Portland, Oregon, which is 500 miles away. They come across old abandoned vehicles, an old airport, houses and even a train. There's also lots of "Hippie Talk", though they are very laid back and accepting of their predicament. I think if this movie was made today all of the characters would be overly angst ridden and whiney. They eventually do encounter people and bring one back to the camp, though their meeting with the "tribe" is told by one of them and not shown, of how they were 30 years at the oldest, deaf and mostly retarded, with no language. I think this scene was a nod to "PLANET OF THE APES", released five years before.
Karen thinks she may be pregnant but the others tell her it's impossible and that they are all sterile because of a side effect of the time-travel process. One night she ends up sneaking away from the others and returns to their original camp. There she finds two corpses and is attacked by one of the others who has gone crazy. She almost has her head bashed in before she makes way to the machine. And this time it works. She appears back in the "present" and freaks out a guard who is puzzled how she got in the room. While he runs out and calls for some more security she locks the door, steals his food, and changes the settings on the machine before she goes back. When she returns it's years later and Winter. The only difference this time is that she sees a car driving down a road, which means there are people here...
IDAHO TRANSER the most laid-back time-travel movie ever but the ending is the kicker.